Damn man, that's a lot of coins and a lot of money. What I am not getting, is how this person got a hold of so many coins without knowing how to take care of them? Did some newbie just come and drop $30,000+ without knowing how to secure their investment? This is the only logical explanation.
He was taking care of them by using a paper wallet. He just pressed the wrong button at the fatal moment. I've done it plenty of times with vital things myself but thankfully there wasn't any wealth involved.
Smaller batches would have definitely been a good idea, nothing more than 5btc per wallet. Satoshi did 50btc per wallet when they weren't worth anything right?